runable

lib/features/scanner/domain/repositories/scanner_repository.dart

@@ -0,0 +1,34 @@
+import 'package:dartz/dartz.dart';
+import '../../../../core/errors/failures.dart';
+import '../entities/scan_entity.dart';
+
+/// Abstract repository interface for scanner operations
+/// This defines the contract that the data layer must implement
+abstract class ScannerRepository {
+  /// Save scan data to remote server
+  Future<Either<Failure, void>> saveScan({
+    required String barcode,
+    required String field1,
+    required String field2,
+    required String field3,
+    required String field4,
+  });
+
+  /// Get scan history from local storage
+  Future<Either<Failure, List<ScanEntity>>> getScanHistory();
+
+  /// Save scan to local storage
+  Future<Either<Failure, void>> saveScanLocally(ScanEntity scan);
+
+  /// Delete a scan from local storage
+  Future<Either<Failure, void>> deleteScanLocally(String barcode);
+
+  /// Clear all scan history from local storage
+  Future<Either<Failure, void>> clearScanHistory();
+
+  /// Get a specific scan by barcode from local storage
+  Future<Either<Failure, ScanEntity?>> getScanByBarcode(String barcode);
+
+  /// Update a scan in local storage
+  Future<Either<Failure, void>> updateScanLocally(ScanEntity scan);
+}